A rule of thumb among your friends: those who don’t talk politics are the conservative ones. Similarly, I’d wager most of the examples here without overtly progressive stickers are conservative.
Depends on where you live. Around me the conservatives are more than willing to offer their political opinions even when the context doesn't fit. Progressive/Liberal folks tend to be less vocal because we already know where we stand with each other and don't want to invite the loudmouth to go off.